scipy.stats._result_classes.FitResult.nllf#
- FitResult.nllf(params=None, data=None)[source]#
Negative log-likelihood function
Evaluates the negative of the log-likelihood function of the provided data at the provided parameters.
- Parameters
- paramstuple, optional
The shape parameters, location, and (if applicable) scale of the distribution as a single tuple. Default is the maximum likelihood estimates (
self.params).- dataarray_like, optional
The data for which the log-likelihood function is to be evaluated. Default is the data to which the distribution was fit.
- Returns
- nllffloat
The negative of the log-likelihood function.